package com.xhdx.map;

import java.util.HashMap;
import java.util.Map;

public class HashMapTest {
    public static void main(String[] args) {
        Map<String, String> chm = new HashMap<>();
        chm.put("ky", "111");
        chm.put("ky1", "222");
        System.out.println(chm.get("ky"));
    }
}
